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<div class="title">cuda_device.hpp</div>  </div>
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<a href="cuda__device_8hpp.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#pragma once</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;</div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="preprocessor">#include &quot;cuda_error.hpp&quot;</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;</div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacetf.html">tf</a> { </div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div><div class="line"><a name="l00014"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#abffa70155a5f160b7ceb86ee52ab2136">   14</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#abffa70155a5f160b7ceb86ee52ab2136">cuda_get_num_devices</a>() {</div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;    <span class="keywordtype">int</span> N = 0;</div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;  TF_CHECK_CUDA(cudaGetDeviceCount(&amp;N), <span class="stringliteral">&quot;failed to get device count&quot;</span>);</div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;    <span class="keywordflow">return</span> <span class="keyword">static_cast&lt;</span><span class="keywordtype">size_t</span><span class="keyword">&gt;</span>(N);</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;}</div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;</div><div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a235f5a9ce203d538eec1f4114221d473">   23</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="cuda__device_8hpp.html#a235f5a9ce203d538eec1f4114221d473">cuda_get_device</a>() {</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;  <span class="keywordtype">int</span> id;</div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;  TF_CHECK_CUDA(cudaGetDevice(&amp;<span class="keywordtype">id</span>), <span class="stringliteral">&quot;failed to get current device id&quot;</span>);</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    <span class="keywordflow">return</span> id;</div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;}</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#ade2938289fa49aafc9b2b7b090deaa22">   32</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="cuda__device_8hpp.html#ade2938289fa49aafc9b2b7b090deaa22">cuda_set_device</a>(<span class="keywordtype">int</span> <span class="keywordtype">id</span>) {</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;  TF_CHECK_CUDA(cudaSetDevice(<span class="keywordtype">id</span>), <span class="stringliteral">&quot;failed to switch to device &quot;</span>, <span class="keywordtype">id</span>);</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;}</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    </div><div class="line"><a name="l00039"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a403b679694f4c85c857163b47e84d566">   39</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="cuda__device_8hpp.html#a403b679694f4c85c857163b47e84d566">cuda_get_device_property</a>(<span class="keywordtype">int</span> i, cudaDeviceProp&amp; p) {</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    cudaGetDeviceProperties(&amp;p, i), <span class="stringliteral">&quot;failed to get property of device &quot;</span>, i</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;  );</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;}</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a0e82b8a929e12349240276e34ec9f8c8">   48</a></span>&#160;<span class="keyword">inline</span> cudaDeviceProp <a class="code" href="cuda__device_8hpp.html#a403b679694f4c85c857163b47e84d566">cuda_get_device_property</a>(<span class="keywordtype">int</span> i) {</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;  cudaDeviceProp p;</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;    cudaGetDeviceProperties(&amp;p, i), <span class="stringliteral">&quot;failed to get property of device &quot;</span>, i</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;  );</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="keywordflow">return</span> p;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;}</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#aff8073c78daa741df76b530a0e602287">   59</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="cuda__device_8hpp.html#aff8073c78daa741df76b530a0e602287">cuda_dump_device_property</a>(<a class="codeRef" doxygen="/Users/twhuang/PhD/Code/taskflow/doxygen/cppreference-doxygen-web.tag.xml:http://en.cppreference.com/w/" href="http://en.cppreference.com/w/cpp/io/basic_ostream.html">std::ostream</a>&amp; os, <span class="keyword">const</span> cudaDeviceProp&amp; p) {</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;  os &lt;&lt; <span class="stringliteral">&quot;Major revision number:         &quot;</span> &lt;&lt; p.major &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Minor revision number:         &quot;</span> &lt;&lt; p.minor &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Name:                          &quot;</span> &lt;&lt; p.name  &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Total global memory:           &quot;</span> &lt;&lt; p.totalGlobalMem &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Total shared memory per block: &quot;</span> &lt;&lt; p.sharedMemPerBlock &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Total registers per block:     &quot;</span> &lt;&lt; p.regsPerBlock &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Warp size:                     &quot;</span> &lt;&lt; p.warpSize &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Maximum memory pitch:          &quot;</span> &lt;&lt; p.memPitch &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Maximum threads per block:     &quot;</span> &lt;&lt; p.maxThreadsPerBlock &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;  os &lt;&lt; <span class="stringliteral">&quot;Maximum dimension of block:    &quot;</span>;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 3; ++i) {</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordflow">if</span>(i) os &lt;&lt; <span class="charliteral">&#39;x&#39;</span>;</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    os &lt;&lt; p.maxThreadsDim[i];</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  }</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;  os &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;  os &lt;&lt; <span class="stringliteral">&quot;Maximum dimenstion of grid:    &quot;</span>;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 3; ++i) {</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;    <span class="keywordflow">if</span>(i) os &lt;&lt; <span class="charliteral">&#39;x&#39;</span>;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;    os &lt;&lt; p.maxGridSize[i];;</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  }</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;  os &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;  os &lt;&lt; <span class="stringliteral">&quot;Clock rate:                    &quot;</span> &lt;&lt; p.clockRate &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Total constant memory:         &quot;</span> &lt;&lt; p.totalConstMem &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Texture alignment:             &quot;</span> &lt;&lt; p.textureAlignment &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Concurrent copy and execution: &quot;</span> &lt;&lt; p.deviceOverlap &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Number of multiprocessors:     &quot;</span> &lt;&lt; p.multiProcessorCount &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Kernel execution timeout:      &quot;</span> &lt;&lt; p.kernelExecTimeoutEnabled &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;GPU sharing Host Memory:       &quot;</span> &lt;&lt; p.integrated &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Host page-locked mem mapping:  &quot;</span> &lt;&lt; p.canMapHostMemory &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Alignment for Surfaces:        &quot;</span> &lt;&lt; p.surfaceAlignment &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Device has ECC support:        &quot;</span> &lt;&lt; p.ECCEnabled &lt;&lt; <span class="charliteral">&#39;\n&#39;</span></div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;     &lt;&lt; <span class="stringliteral">&quot;Unified Addressing (UVA):      &quot;</span> &lt;&lt; p.unifiedAddressing &lt;&lt; <span class="charliteral">&#39;\n&#39;</span>;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;}</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;</div><div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#abf813f7ac4249d1b752d1b724f970deb">  101</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#abf813f7ac4249d1b752d1b724f970deb">cuda_get_device_max_threads_per_block</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;  <span class="keywordtype">int</span> threads = 0;</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;    cudaDeviceGetAttribute(&amp;threads, cudaDevAttrMaxThreadsPerBlock, d),</div><div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum threads per block on device &quot;</span>, d</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;  )</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;  <span class="keywordflow">return</span> threads;</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;}</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div><div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#af8184bb128c446fe383315f3dc15acf6">  113</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#af8184bb128c446fe383315f3dc15acf6">cuda_get_device_max_x_dim_per_block</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  <span class="keywordtype">int</span> dim = 0;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    cudaDeviceGetAttribute(&amp;dim, cudaDevAttrMaxBlockDimX, d),</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum x-dimension per block on device &quot;</span>, d</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;  )</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;  <span class="keywordflow">return</span> dim;</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;}</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a9aba5f29135b9da29015c2a367ab1d70">  125</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#a9aba5f29135b9da29015c2a367ab1d70">cuda_get_device_max_y_dim_per_block</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;  <span class="keywordtype">int</span> dim = 0;</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;    cudaDeviceGetAttribute(&amp;dim, cudaDevAttrMaxBlockDimY, d),</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum y-dimension per block on device &quot;</span>, d</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;  )</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;  <span class="keywordflow">return</span> dim;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;}</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a5580f59e633625b2f344bbf477d17c2f">  137</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#a5580f59e633625b2f344bbf477d17c2f">cuda_get_device_max_z_dim_per_block</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;  <span class="keywordtype">int</span> dim = 0;</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;    cudaDeviceGetAttribute(&amp;dim, cudaDevAttrMaxBlockDimZ, d),</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum z-dimension per block on device &quot;</span>, d</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;  )</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;  <span class="keywordflow">return</span> dim;</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;}</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;</div><div class="line"><a name="l00149"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a597579c8a9ab31244418e30a5aa74491">  149</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#a597579c8a9ab31244418e30a5aa74491">cuda_get_device_max_x_dim_per_grid</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;  <span class="keywordtype">int</span> dim = 0;</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;    cudaDeviceGetAttribute(&amp;dim, cudaDevAttrMaxGridDimX, d),</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum x-dimension per grid on device &quot;</span>, d</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;  )</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;  <span class="keywordflow">return</span> dim;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;}</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a91d5c1609a7542949dd56d08b7c4c645">  161</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#a91d5c1609a7542949dd56d08b7c4c645">cuda_get_device_max_y_dim_per_grid</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;  <span class="keywordtype">int</span> dim = 0;</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;    cudaDeviceGetAttribute(&amp;dim, cudaDevAttrMaxGridDimY, d),</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum y-dimension per grid on device &quot;</span>, d</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;  )</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;  <span class="keywordflow">return</span> dim;</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;}</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div><div class="line"><a name="l00173"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a0373e32a20c7fc90c4f0461ee41bb918">  173</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#a0373e32a20c7fc90c4f0461ee41bb918">cuda_get_device_max_z_dim_per_grid</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;  <span class="keywordtype">int</span> dim = 0;</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;    cudaDeviceGetAttribute(&amp;dim, cudaDevAttrMaxGridDimZ, d),</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum z-dimension per grid on device &quot;</span>, d</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;  )</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <span class="keywordflow">return</span> dim;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;}</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00185"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#aeca46ac171c4941a75aafddfe7546bfa">  185</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#aeca46ac171c4941a75aafddfe7546bfa">cuda_get_device_max_shm_per_block</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;  <span class="keywordtype">int</span> num = 0;</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;    cudaDeviceGetAttribute(&amp;num, cudaDevAttrMaxSharedMemoryPerBlock, d),</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    <span class="stringliteral">&quot;failed to query the maximum shared memory per block on device &quot;</span>, d</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;  )</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;  <span class="keywordflow">return</span> num;</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;}</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;</div><div class="line"><a name="l00197"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#aea1b2af1073496f047d6fb9984cff4f1">  197</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="cuda__device_8hpp.html#aea1b2af1073496f047d6fb9984cff4f1">cuda_get_device_warp_size</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;  <span class="keywordtype">int</span> num = 0;</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    cudaDeviceGetAttribute(&amp;num, cudaDevAttrWarpSize, d),</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    <span class="stringliteral">&quot;failed to query the warp size per block on device &quot;</span>, d</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;  )</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;  <span class="keywordflow">return</span> num;</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;}</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div><div class="line"><a name="l00209"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a1fb03793a6b8705026b80ef87599d4d5">  209</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="cuda__device_8hpp.html#a1fb03793a6b8705026b80ef87599d4d5">cuda_get_device_compute_capability_major</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;  <span class="keywordtype">int</span> num = 0;</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    cudaDeviceGetAttribute(&amp;num, cudaDevAttrComputeCapabilityMajor, d),</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    <span class="stringliteral">&quot;failed to query the major number of compute capability of device &quot;</span>, d</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;  )</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;  <span class="keywordflow">return</span> num;</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;}</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;</div><div class="line"><a name="l00221"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a71f5177665f4f7e18984ccc57d625602">  221</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="cuda__device_8hpp.html#a71f5177665f4f7e18984ccc57d625602">cuda_get_device_compute_capability_minor</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;  <span class="keywordtype">int</span> num = 0;</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;    cudaDeviceGetAttribute(&amp;num, cudaDevAttrComputeCapabilityMinor, d),</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    <span class="stringliteral">&quot;failed to query the minor number of compute capability of device &quot;</span>, d</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;  )</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;  <span class="keywordflow">return</span> num;</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;}</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;</div><div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#ad389294b4d1c14219d8d098f796e27c5">  233</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="cuda__device_8hpp.html#ad389294b4d1c14219d8d098f796e27c5">cuda_get_device_unified_addressing</a>(<span class="keywordtype">int</span> d) {</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;  <span class="keywordtype">int</span> num = 0;</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    cudaDeviceGetAttribute(&amp;num, cudaDevAttrUnifiedAddressing, d),</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    <span class="stringliteral">&quot;failed to query unified addressing status on device &quot;</span>, d</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;  )</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;  <span class="keywordflow">return</span> num;</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;}</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;<span class="comment">// ----------------------------------------------------------------------------</span></div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;<span class="comment">// CUDA Version</span></div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;<span class="comment">// ----------------------------------------------------------------------------</span></div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;</div><div class="line"><a name="l00249"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a43ac57f0eca3aa83c04bec3c4da9ab82">  249</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="cuda__device_8hpp.html#a43ac57f0eca3aa83c04bec3c4da9ab82">cuda_get_driver_version</a>() {</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;  <span class="keywordtype">int</span> num = 0;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;    cudaDriverGetVersion(&amp;num), </div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;    <span class="stringliteral">&quot;failed to query the latest cuda version supported by the driver&quot;</span></div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;  );</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;  <span class="keywordflow">return</span> num;</div><div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;}</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;</div><div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="cuda__device_8hpp.html#a31258ad089c6f847c8cd636cd72d6949">  261</a></span>&#160;<span class="keyword">inline</span> <span class="keywordtype">int</span> <a class="code" href="cuda__device_8hpp.html#a31258ad089c6f847c8cd636cd72d6949">cuda_get_runtime_version</a>() {</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;  <span class="keywordtype">int</span> num = 0;</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;  TF_CHECK_CUDA(</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;    cudaRuntimeGetVersion(&amp;num), <span class="stringliteral">&quot;failed to query cuda runtime version&quot;</span></div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;  );</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;  <span class="keywordflow">return</span> num;</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;}</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;<span class="comment">// ----------------------------------------------------------------------------</span></div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;<span class="comment">// cudaScopedDevice</span></div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;<span class="comment">// ----------------------------------------------------------------------------</span></div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;</div><div class="line"><a name="l00292"></a><span class="lineno"><a class="line" href="classtf_1_1cudaScopedDevice.html">  292</a></span>&#160;<span class="keyword">class </span><a class="code" href="classtf_1_1cudaScopedDevice.html">cudaScopedDevice</a> {</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;  <span class="keyword">public</span>:</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;    </div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;    <span class="keyword">explicit</span> <a class="code" href="classtf_1_1cudaScopedDevice.html">cudaScopedDevice</a>(<span class="keywordtype">int</span> device);</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;    <a class="code" href="classtf_1_1cudaScopedDevice.html#ad2c9212f42d80d1f7436bb52651006ee">~cudaScopedDevice</a>();</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;  <span class="keyword">private</span>:</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;    </div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;    <a class="code" href="classtf_1_1cudaScopedDevice.html">cudaScopedDevice</a>() = <span class="keyword">delete</span>;</div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;    <a class="code" href="classtf_1_1cudaScopedDevice.html">cudaScopedDevice</a>(<span class="keyword">const</span> <a class="code" href="classtf_1_1cudaScopedDevice.html">cudaScopedDevice</a>&amp;) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;    <a class="code" href="classtf_1_1cudaScopedDevice.html">cudaScopedDevice</a>(<a class="code" href="classtf_1_1cudaScopedDevice.html">cudaScopedDevice</a>&amp;&amp;) = <span class="keyword">delete</span>;</div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;    <span class="keywordtype">int</span> _p;</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;};</div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;<span class="comment">// Constructor</span></div><div class="line"><a name="l00318"></a><span class="lineno"><a class="line" href="classtf_1_1cudaScopedDevice.html#a03d75e2c0b084c8e926a00a922302653">  318</a></span>&#160;<span class="keyword">inline</span> cudaScopedDevice::cudaScopedDevice(<span class="keywordtype">int</span> dev) { </div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;  TF_CHECK_CUDA(cudaGetDevice(&amp;_p), <span class="stringliteral">&quot;failed to get current device scope&quot;</span>);</div><div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;  <span class="keywordflow">if</span>(_p == dev) {</div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;    _p = -1;</div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;  }</div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;    TF_CHECK_CUDA(cudaSetDevice(dev), <span class="stringliteral">&quot;failed to scope on device &quot;</span>, dev);</div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;  }</div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;}</div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;</div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;<span class="comment">// Destructor</span></div><div class="line"><a name="l00329"></a><span class="lineno"><a class="line" href="classtf_1_1cudaScopedDevice.html#ad2c9212f42d80d1f7436bb52651006ee">  329</a></span>&#160;<span class="keyword">inline</span> <a class="code" href="classtf_1_1cudaScopedDevice.html#ad2c9212f42d80d1f7436bb52651006ee">cudaScopedDevice::~cudaScopedDevice</a>() { </div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;  <span class="keywordflow">if</span>(_p != -1) {</div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;    cudaSetDevice(_p);</div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;    <span class="comment">//TF_CHECK_CUDA(cudaSetDevice(_p), &quot;failed to scope back to device &quot;, _p);</span></div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;  }</div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;}</div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;}  <span class="comment">// end of namespace cuda ---------------------------------------------------</span></div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;</div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;</div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;</div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;</div><div class="ttc" id="cuda__device_8hpp_html_abffa70155a5f160b7ceb86ee52ab2136"><div class="ttname"><a href="cuda__device_8hpp.html#abffa70155a5f160b7ceb86ee52ab2136">tf::cuda_get_num_devices</a></div><div class="ttdeci">size_t cuda_get_num_devices()</div><div class="ttdoc">queries the number of available devices </div><div class="ttdef"><b>Definition:</b> cuda_device.hpp:14</div></div>
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